diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 1e6ef8d6ebe..efeed543865 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -4726,6 +4726,9 @@ function price2num($amount, $rounding = '', $alreadysqlnb = 0)
 
 		// Convert amount to format with dolibarr dec and thousand (this is because PHP convert a number
 		// to format defined by LC_NUMERIC after a calculation and we want source format to be like defined by Dolibarr setup.
+		if ($thousand == '.') {
+			$amount = str_replace($thousand, '', $amount); // Replace of thousand before test of is_numeric to avoid pb if thousand is .
+		}
 		if (is_numeric($amount))
 		{
 			// We put in temps value of decimal ("0.00001"). Works with 0 and 2.0E-5 and 9999.10
@@ -4735,9 +4738,11 @@ function price2num($amount, $rounding = '', $alreadysqlnb = 0)
 			$amount = number_format($amount, $nbofdec, $dec, $thousand);
 		}
 		//print "QQ".$amount.'<br>';
-
+		
 		// Now make replace (the main goal of function)
-		if ($thousand != ',' && $thousand != '.') $amount = str_replace(',', '.', $amount); // To accept 2 notations for french users
+		if ($thousand != ',' && $thousand != '.') {
+			$amount = str_replace(',', '.', $amount); // To accept 2 notations for french users
+		}
 		$amount = str_replace(' ', '', $amount); // To avoid spaces
 		$amount = str_replace($thousand, '', $amount); // Replace of thousand before replace of dec to avoid pb if thousand is .
 		$amount = str_replace($dec, '.', $amount);
diff --git a/htdocs/product/price.php b/htdocs/product/price.php
index 48cf4722ae7..d89020b33a3 100644
--- a/htdocs/product/price.php
+++ b/htdocs/product/price.php
@@ -279,10 +279,11 @@ if (empty($reshook))
 		}
 		elseif (!$error)
 		{
+			var_dump(GETPOST('price', 'alpha'));
 			$newprice = price2num(GETPOST('price', 'alpha'));
+			var_dump($newprice);exit;
 			$newprice_min = price2num(GETPOST('price_min', 'alpha'));
 			$newpricebase = GETPOST('price_base_type', 'alpha');
-
 			$tva_tx_txt = GETPOST('tva_tx', 'alpha'); // tva_tx can be '8.5'  or  '8.5*'  or  '8.5 (XXX)' or '8.5* (XXX)'
 
 			$tva_tx = $tva_tx_txt;
diff --git a/test/phpunit/FunctionsLibTest.php b/test/phpunit/FunctionsLibTest.php
index e3dabff6df9..0fc2583178c 100644
--- a/test/phpunit/FunctionsLibTest.php
+++ b/test/phpunit/FunctionsLibTest.php
@@ -1225,6 +1225,15 @@ class FunctionsLibTest extends PHPUnit\Framework\TestCase
      */
     public function testDolPrice2Num()
     {
+    	global $langs, $conf;
+
+    	$oldlangs = $langs;
+
+    	$newlangs = new Translate('', $conf);
+    	$newlangs->setDefaultLang('en_US');
+    	$newlangs->load("main");
+    	$langs = $newlangs;
+
         $this->assertEquals(1000, price2num('1 000.0'));
         $this->assertEquals(1000, price2num('1 000', 'MT'));
         $this->assertEquals(1000, price2num('1 000', 'MU'));
@@ -1239,10 +1248,36 @@ class FunctionsLibTest extends PHPUnit\Framework\TestCase
         $this->assertEquals(1000.13, price2num('1 000.125456', 'MT'));
         $this->assertEquals(1000.12546, price2num('1 000.125456', 'MU'), "Test MU");
 
+        $this->assertEquals(1, price2num('1.000'), 'Test 1.000 give 1 with english language');
+
         // Text can't be converted
         $this->assertEquals('12.4$', price2num('12.4$'));
         $this->assertEquals('12r.4$', price2num('12r.4$'));
 
+        // For spanish language
+        $newlangs2 = new Translate('', $conf);
+        $newlangs2->setDefaultLang('es_ES');
+        $newlangs2->load("main");
+        $langs = $newlangs2;
+
+        $this->assertEquals(1000, price2num('1.000'), 'Test 1.000 give 1000 with spanish language');
+        $this->assertEquals(1000, price2num('1 000'), 'Test 1 000 give 1000 with spanish language');
+        $this->assertEquals(1234, price2num('1.234'), 'Test 1.234 give 1234 with spanish language');
+        $this->assertEquals(1.234, price2num('1,234'), 'Test 1,234 give 1.234 with spanish language');
+
+        // For french language
+        $newlangs3 = new Translate('', $conf);
+        $newlangs3->setDefaultLang('fr_FR');
+        $newlangs3->load("main");
+        $langs = $newlangs3;
+
+        $this->assertEquals(1, price2num('1.000'), 'Test 1.000 give 1 with french language');
+        $this->assertEquals(1000, price2num('1 000'), 'Test 1.000 give 1 with french language');
+        $this->assertEquals(1.234, price2num('1.234'), 'Test 1.234 give 1.234 with french language');
+        $this->assertEquals(1.234, price2num('1,234'), 'Test 1,234 give 1.234 with french language');
+
+        $langs = $oldlangs;
+
         return true;
     }